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Finding the Fourth Proportional to 347.15, 479.44 and 236.92

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Solution

The fourth proportional to 347.15, 479.44 and 236.92 is: 327.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.15 : 479.44 = 236.92 : x
  2. Step 2: Convert to fraction form
    347.15/479.44 = 236.92/x
  3. Step 3: Cross multiply
    347.15x = 479.44 × 236.92
  4. Step 4: Simplify right side
    347.15x = 113,588.92
  5. Step 5: Solve for x
    x = 113,588.92/347.15
  6. Step 6: Final answer
    x = 327.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.